WO2024254880A1 - 一种通信资源确定方法、装置及设备 - Google Patents
一种通信资源确定方法、装置及设备 Download PDFInfo
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- WO2024254880A1 WO2024254880A1 PCT/CN2023/100852 CN2023100852W WO2024254880A1 WO 2024254880 A1 WO2024254880 A1 WO 2024254880A1 CN 2023100852 W CN2023100852 W CN 2023100852W WO 2024254880 A1 WO2024254880 A1 WO 2024254880A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/2639—Modulators using other transforms, e.g. discrete cosine transforms, Orthogonal Time Frequency and Space [OTFS] or hermetic transforms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/26025—Numerology, i.e. varying one or more of symbol duration, subcarrier spacing, Fourier transform size, sampling rate or down-clocking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
- H04L27/264—Pulse-shaped multi-carrier, i.e. not using rectangular window
- H04L27/26416—Filtering per subcarrier, e.g. filterbank multicarrier [FBMC]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2649—Demodulators
- H04L27/26532—Demodulators using other transforms, e.g. discrete cosine transforms, Orthogonal Time Frequency and Space [OTFS] or hermetic transforms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2697—Multicarrier modulation systems in combination with other modulation techniques
Definitions
- the present disclosure relates to the field of communication technology, and in particular to a method, apparatus and device for determining communication resources.
- the second parameter satisfies at least one of the following: Where M' represents the number of subcarriers in the frequency domain of the scheduling unit in the time-frequency domain, and fc represents the interval of each subcarrier in the frequency domain in the time-frequency domain; Wherein N' represents the number of symbols of the scheduling unit in the time domain in the time-frequency domain, and T represents the duration of each symbol in the time domain in the time-frequency domain.
- f c 15 ⁇ 10 3 ⁇ 2 k , where k is an integer greater than or equal to 0;
- f c 15 ⁇ 10 3 ⁇ 2 k , where k is an integer greater than or equal to 0;
- the sampling period for inserting CP by the scheduling unit is T1
- the number of sampling points is K
- the scheduling unit inserts CP every I symbols in the time domain, 1 ⁇ I ⁇ 14.
- FIG2 is a schematic diagram of a flow chart of an OTFS-OFDM system provided by an embodiment of the present disclosure
- T1 is a time unit
- K is 2048
- a CP can be added separately to each time domain symbol in a time unit. For example, as shown in FIG3, the sampling period is 1 time slot, and each time slot has 2048 sampling points, then the number of CP sampling points of the 0th symbol and the 7th symbol is 160, and the number of CP sampling points of other symbols is 144.
- T1 is a time unit
- K is 2048, 1 ⁇ I ⁇ 14
- the CP is added at the starting position of consecutive I symbols
- the number of sampling points of the kth CP added in T1 is:
- Ki represents the number of sampling points for adding CP to the i-th symbol when CP is added to each symbol in T1, i ⁇ I.
- CP can be added to some symbols in a time unit based on certain rules, and the number of sampling points of each CP can be the same or different. For example, as shown in FIG4, the sampling period is 1 time slot, and each time slot has 2048 sampling points, then CP can be added only to the first symbol, and the number of sampling points of the CP is 2048.
- the sampling period is 1 time slot, and each time slot has 2048 sampling points, then a CP can be added every 2 symbols, that is, CP is added only before the 0th, 2nd, 4th, 6th, 8th, 10th and 12th symbols.
- the method includes: determining a scheduling unit in a delay-Doppler DD domain, wherein the scheduling unit is used in an orthogonal time-frequency-space OTFS modulation system.
- the method disclosed in the present disclosure implements a scheduling unit design of an OTFS system in a DD domain by determining a scheduling unit in a delay-Doppler DD domain, so that signals and/or data can be mapped to the designed scheduling unit, thereby using the scheduling unit to perform communication tasks such as sending signals and/or data.
- FIG5 is a flow chart of a method for determining a communication resource provided by an embodiment of the present disclosure. The method is executed by a first device. As shown in FIG5 , the method for determining a communication resource may include the following steps:
- Step 501 Map signals and/or data to a scheduling unit.
- the first device may be a device for scheduling communication resources, wherein the scheduled communication resources may be time-frequency resources in the time-frequency domain or OTFS resources in the DD domain, which is not limited by the present disclosure.
- the first device may be a network device. It should be understood that, with the development of communication technology, the first device may also be a terminal device, and the present disclosure does not limit this.
- the first device may be a transmitting device or a receiving device, which is not limited by the present disclosure.
- the first device can map a channel state information reference signal (Channel State I nformation Reference Signal, CSI-RS) to a scheduling unit to send the channel state information reference signal using the scheduling unit.
- CSI-RS Channel State I nformation Reference Signal
- FIG6 is a schematic structural diagram of a communication resource determination device 600 provided in an embodiment of the present disclosure.
- the parameters of the scheduling unit include a first parameter and a second parameter
- the first parameter includes: M, the number of symbols of the scheduling unit in the delay domain; N, the number of subcarriers of the scheduling unit in the Doppler domain;
- the second parameter includes: t, the duration of each symbol of the scheduling unit in the delay domain; f, the interval of each subcarrier of the scheduling unit in the Doppler domain.
- f c 15 ⁇ 10 3 ⁇ 2 k , where k is an integer greater than or equal to 0;
- f c 15 ⁇ 10 3 ⁇ 2 k , where k is an integer greater than or equal to 0;
- f c 15 ⁇ 10 3 ⁇ 2 k , where k is an integer greater than or equal to 0;
- the sampling period for inserting CP by the scheduling unit is T1
- the number of sampling points is K
- the scheduling unit inserts CP every I symbols in the time domain, 1 ⁇ I ⁇ 14.
- the processing unit 610 is further configured to map a signal and/or data to a scheduling unit.
- FIG 7 is a schematic diagram of the structure of a communication device 700 provided in an embodiment of the present application.
- the communication device 700 can be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a processor that supports the terminal device to implement the above method.
- the device can be used to implement the method described in the above method embodiment, and the details can be referred to the description in the above method embodiment.
- the communication device 700 may include one or more processors 701.
- the processor 701 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processing unit.
- the baseband processor may be used to process the communication protocol and the communication data
- the central processing unit may be used to control the communication resource determination device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute a computer program, and process the data of the computer program.
- the communication device 700 may further include one or more memories 702, on which a computer program 704 may be stored, and the processor 701 executes the computer program 704 so that the communication device 700 performs the method described in the above method embodiment.
- data may also be stored in the memory 702.
- the communication device 700 and the memory 702 may be provided separately or integrated together.
- the communication resource determination device can be a chip or a chip system
- the communication resource determination device can be a chip or a chip system
- the chip shown in Figure 8 includes a processor 801 and an interface 802.
- the number of processors 801 can be one or more, and the number of interfaces 802 can be multiple.
- the present application also provides a readable storage medium having instructions stored thereon, which implement the functions of any of the above method embodiments when executed by a computer.
- the corresponding relationships shown in the tables in this application can be configured or predefined.
- the values of the information in each table are only examples and can be configured as other values, which are not limited by this application.
- the corresponding relationships shown in some rows may not be configured.
- appropriate deformation adjustments can be made based on the above table, such as splitting, merging, etc.
- the names of the parameters shown in the titles of the above tables can also use other names that can be understood by the communication resource determination device, and the values or representations of the parameters can also be other values or representations that can be understood by the communication resource determination device.
- other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables.
- the predefined in the present application may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (18)
- 一种通信资源确定方法,其特征在于,所述方法由第一设备执行,所述方法包括:确定时延-多普勒DD域的调度单元,其中,所述调度单元用于正交时频空OTFS调制系统。
- 根据权利要求1所述的方法,其特征在于,所述调度单元的参数包括第一参数和第二参数,所述第一参数包括:M,所述调度单元在时延域上的符号数目;N,所述调度单元在多普勒域上的子载波数目;所述第二参数包括:t,所述调度单元在时延域上的每个符号的时长;f,所述调度单元在多普勒域上的每个子载波的间隔。
- 根据权利要求2所述的方法,其特征在于,所述第一参数满足以下至少之一:M=M',其中M'表示所述调度单元在时频域中频域上的子载波数目;N=N',其中N'表示所述调度单元在时频域中时域上的符号数目。
- 根据权利要求2或3所述的方法,其特征在于,M=m×a,其中m表示所述调度单元在频域上包括的资源块RB数目,a表示每个RB包括的子载波数目,m为正整数;N=n×b,其中n表示所述调度单元在时域上包括的时间单元数目,b表示每个时间单元包括的符号数目,n=2k,k为大于或等于0的整数。
- 根据权利要求4所述的方法,其特征在于,在所述调度单元插入第一循环前缀CP的情况下,
a=12;
b=14。 - 根据权利要求4所述的方法,其特征在于,在所述调度单元插入第二循环前缀CP的情况下,
a=12;
b=12。 - 根据权利要求2至6中任一项所述的方法,其特征在于,所述第二参数满足以下至少之一:其中M'表示所述调度单元在时频域中频域上的子载波数目,fc表示在时频域中频域上的每个子载波的间隔;其中N'表示所述调度单元在时频域中时域上的符号数目,T表示在时频域中时域上的每个符号的时长。
- 根据权利要求7所述的方法,其特征在于,在所述调度单元插入第一循环前缀CP或第二CP的情况下,fc=15×103×2k,其中k为大于等于0的整数;
- 根据权利要求7所述的方法,其特征在于,在所述调度单元不插入第一循环前缀CP的情况下,fc=15×103×2k,其中k为大于等于0的整数;
- 根据权利要求7所述的方法,其特征在于,在所述调度单元不插入第二循环前缀CP的情况下,fc=15×103×2k,其中k为大于等于0的整数;
- 根据权利要求10所述的方法,其特征在于,k为2。
- 根据权利要求6或8中任一项所述的方法,其特征在于,所述调度单元插入CP的采样周期为T1、采样点数为K,所述调度单元在时域上的每隔I个符号插入一次CP,1≤I≤14。
- 根据权利要求12所述的方法,其特征在于,所述T1为一个时间单元,所述K为2048,I=1,其中,所述调度单元在时域上的第0个CP和第7个CP的采样点数为160,其他CP的采样点数为144。
- 根据权利要求12所述的方法,其特征在于,所述T1为一个时间单元,所述K为2048,1<I≤14,其中,CP添加在连续I个符号的起始位置,在所述T1内添加的第k个CP的采样点数为:
其中Ki表示所述T1内的每个符号都添加CP时第i个符号添加CP的采样点数,i≤I。 - 根据权利要求1至14中任一项所述的方法,其特征在于,所述方法还包括:将信号和/或数据映射至所述调度单元。
- 一种通信资源确定装置,其特征在于,所述装置包括:处理单元,用于确定时延-多普勒DD域的调度单元,其中,所述调度单元用于正交时频空OTFS调制系统。
- 一种通信设备,其中,包括:收发器;存储器;处理器,分别与所述收发器及所述存储器连接,配置为通过执行所述存储器上的计算机可执行指令,控制所述收发器的无线信号收发,并能够实现权利要求1-15中任一项所述的方法。
- 一种计算机存储介质,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现权利要求1-15中任一项所述的方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2023/100852 WO2024254880A1 (zh) | 2023-06-16 | 2023-06-16 | 一种通信资源确定方法、装置及设备 |
| CN202380097760.6A CN121058210A (zh) | 2023-06-16 | 2023-06-16 | 一种通信资源确定方法、装置及设备 |
| EP23941113.5A EP4730724A1 (en) | 2023-06-16 | 2023-06-16 | Communication resource determination method and apparatus and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2023/100852 WO2024254880A1 (zh) | 2023-06-16 | 2023-06-16 | 一种通信资源确定方法、装置及设备 |
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| WO2024254880A1 true WO2024254880A1 (zh) | 2024-12-19 |
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| PCT/CN2023/100852 Ceased WO2024254880A1 (zh) | 2023-06-16 | 2023-06-16 | 一种通信资源确定方法、装置及设备 |
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| Country | Link |
|---|---|
| EP (1) | EP4730724A1 (zh) |
| CN (1) | CN121058210A (zh) |
| WO (1) | WO2024254880A1 (zh) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111919394A (zh) * | 2017-11-01 | 2020-11-10 | 凝聚技术公司 | 使用正交时频空分复用的无线系统中的预编码 |
| WO2020238573A1 (zh) * | 2019-05-27 | 2020-12-03 | 华为技术有限公司 | 信号处理方法及装置 |
| EP3826255A1 (en) * | 2019-11-20 | 2021-05-26 | Volkswagen AG | Access node, user equipment, and corresponding apparatuses, methods and computer programs |
| CN113726715A (zh) * | 2021-09-19 | 2021-11-30 | 珠海跃线科技有限公司 | 用于无线通信的装置和方法 |
| CN114916039A (zh) * | 2021-02-10 | 2022-08-16 | 维沃移动通信有限公司 | 接入方法、装置、通信设备及可读存储介质 |
-
2023
- 2023-06-16 WO PCT/CN2023/100852 patent/WO2024254880A1/zh not_active Ceased
- 2023-06-16 EP EP23941113.5A patent/EP4730724A1/en active Pending
- 2023-06-16 CN CN202380097760.6A patent/CN121058210A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111919394A (zh) * | 2017-11-01 | 2020-11-10 | 凝聚技术公司 | 使用正交时频空分复用的无线系统中的预编码 |
| WO2020238573A1 (zh) * | 2019-05-27 | 2020-12-03 | 华为技术有限公司 | 信号处理方法及装置 |
| EP3826255A1 (en) * | 2019-11-20 | 2021-05-26 | Volkswagen AG | Access node, user equipment, and corresponding apparatuses, methods and computer programs |
| CN114916039A (zh) * | 2021-02-10 | 2022-08-16 | 维沃移动通信有限公司 | 接入方法、装置、通信设备及可读存储介质 |
| CN113726715A (zh) * | 2021-09-19 | 2021-11-30 | 珠海跃线科技有限公司 | 用于无线通信的装置和方法 |
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| Publication number | Publication date |
|---|---|
| CN121058210A (zh) | 2025-12-02 |
| EP4730724A1 (en) | 2026-04-22 |
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